Further Workplace Health and Safety bosses will be grilled at the inquest into the Dreamworld disaster today, after a leading inspector admitted he had "no confidence" in the emergency procedures in place on the Thunder River Rapids ride.

Victoria's Acting Premier Tim Pallas has asked the Children's Court to explain its decision to grant a 17 year old bail after allegedly assaulting a police officer.

The boy is accused of kicking a Senior Constable at Highpoint Shopping Centre. The victim was patrolling the centre with a colleague when they confronted a different teenager for allegedly shoplifting.

In a mobile phone shop, that teen resisted arrest and got in a struggle with the officers, trying to break away from them.

The confronting images of the officer's injuries were released by the Police Association. (Supplied) ()

The wrestle continued outside the store and that's when a different boy - who was granted bail on Tuesday - kicked the police officer while he was trying to make an arrest.

The Police Association has released confronting photos of the victim's injuries. The officer has five years’ experience in the job and is based at Footscray Police Station.

9NEWS has been told the magistrate made the decision to grant bail because the boy was deemed not to be an unacceptable risk to the community or at risk of re-offending.

The teen is accused of kicking a Senior Constable at Highpoint Shopping Centre in Melbourne's west. (9NEWS) ()The officer has five years' experience in the job. (Supplied) ()The teen is accused of kicking this police officer at a Melbourne shopping centre. (Supplied) ()

Wayne Gatt from the Association came out swinging this morning, calling it an "insult".

Police Minister Lisa Neville confirmed that new bail laws will take effect in Victorian courts in July 2018. She says had this case been heard under the new legislation, it’s highly unlikely he'd be granted bail.

Ms Neville also said it was "incomprehensible" that the Magistrate freed this alleged offender while his case goes through court.